- Add a new cache to store library covers without relying on Glide's cache, making sure they are always available. - Use Observable's defer instead of create in NetworkHelper. - Fix Kissmanga showing only one genre.pull/12/head
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package eu.kanade.mangafeed.data.cache;
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import android.content.Context;
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import android.widget.ImageView;
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import com.bumptech.glide.Glide;
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import com.bumptech.glide.load.engine.DiskCacheStrategy;
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import com.bumptech.glide.load.model.GlideUrl;
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import com.bumptech.glide.load.model.LazyHeaders;
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import com.bumptech.glide.request.animation.GlideAnimation;
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import com.bumptech.glide.request.target.SimpleTarget;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import eu.kanade.mangafeed.util.DiskUtils;
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public class CoverCache {
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private static final String PARAMETER_CACHE_DIRECTORY = "cover_disk_cache";
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private Context context;
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private File cacheDir;
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public CoverCache(Context context) {
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this.context = context;
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cacheDir = new File(context.getCacheDir(), PARAMETER_CACHE_DIRECTORY);
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createCacheDir();
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}
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private boolean createCacheDir() {
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return !cacheDir.exists() && cacheDir.mkdirs();
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}
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// Download the cover with Glide (it can avoid repeating requests) and save the file on this cache
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public void save(String cover, LazyHeaders headers) {
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GlideUrl url = new GlideUrl(cover, headers);
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Glide.with(context)
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.load(url)
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.downloadOnly(new SimpleTarget<File>() {
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@Override
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public void onResourceReady(File resource, GlideAnimation<? super File> anim) {
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try {
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add(cover, resource);
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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});
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}
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// Copy the cover from Glide's cache to this cache
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public void add(String key, File source) throws IOException {
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File dest = new File(cacheDir, DiskUtils.hashKeyForDisk(key));
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if (dest.exists())
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dest.delete();
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InputStream in = new FileInputStream(source);
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try {
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OutputStream out = new FileOutputStream(dest);
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try {
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// Transfer bytes from in to out
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byte[] buf = new byte[1024];
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int len;
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while ((len = in.read(buf)) > 0) {
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out.write(buf, 0, len);
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}
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} finally {
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out.close();
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}
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} finally {
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in.close();
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}
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}
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// Get the cover from cache
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public File get(String key) {
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return new File(cacheDir, DiskUtils.hashKeyForDisk(key));
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}
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// Delete the cover from cache
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public boolean delete(String key) {
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File file = new File(cacheDir, DiskUtils.hashKeyForDisk(key));
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return file.exists() && file.delete();
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}
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// Load the cover from cache or network if it doesn't exist
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public void loadOrFetchInto(ImageView imageView, String cover, LazyHeaders headers) {
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File localCover = get(cover);
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if (localCover.exists()) {
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loadLocalInto(context, imageView, localCover);
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} else {
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loadRemoteInto(context, imageView, cover, headers);
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}
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}
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// Load the cover from cache
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public static void loadLocalInto(Context context, ImageView imageView, String cover) {
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File cacheDir = new File(context.getCacheDir(), PARAMETER_CACHE_DIRECTORY);
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File localCover = new File(cacheDir, DiskUtils.hashKeyForDisk(cover));
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if (localCover.exists()) {
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loadLocalInto(context, imageView, localCover);
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}
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}
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// Load the cover from the cache directory into the specified image view
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private static void loadLocalInto(Context context, ImageView imageView, File file) {
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Glide.with(context)
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.load(file)
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.diskCacheStrategy(DiskCacheStrategy.NONE)
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.centerCrop()
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.into(imageView);
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}
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// Load the cover from network into the specified image view. It does NOT save the image in cache
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private static void loadRemoteInto(Context context, ImageView imageView, String cover, LazyHeaders headers) {
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GlideUrl url = new GlideUrl(cover, headers);
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Glide.with(context)
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.load(url)
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.diskCacheStrategy(DiskCacheStrategy.SOURCE)
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.centerCrop()
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.into(imageView);
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}
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}
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